Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (11): 1793-1799.DOI: 10.1016/S1872-2067(14)60203-5

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PVP-NiB amorphous catalyst for selective hydrogenation of phenol and its derivatives

Qinsheng Zhanga, Haifeng Lia, Ping Gaob, Lailai Wanga   

  1. a State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;
    b State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China
  • Received:2014-06-25 Revised:2014-07-24 Online:2014-11-06 Published:2014-11-06
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21174115) and the Youth Foundation of Gansu Province (1308RJYA036).

Abstract:

PVP-NiB amorphous catalysts were prepared by the chemical reduction of nickel chloride with sodium borohydride, and characterized by infrared, X-ray diffraction, transmission election microscopy, and inductively coupled plasma. The relationship between the catalytic activity and nature of the active sites was discussed. PVP is a protective agent for preparing PVP-stabilized NiB catalysts, which improved the dispersion of the catalyst and stabilized its amorphous structure. The catalysis of phenol and its derivatives was evaluated in the aqueous phase. 99.9% conversion of phenol and 99.9% selectivity to cyclohexanol were obtained at 30 ℃ and 0.2 MPa H2 after 18 h over PVP-NiB. The generality of the PVP-NiB catalyst for this reaction was demonstrated by the selective hydrogenation of other phenol derivatives, which showed that the PVP-NiB catalyst was selective for the formation of cyclohexanol.

Key words: Nickel, Phenol, Catalytic hydrogenation, Amorphous catalyst